Chesley

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**Chesley**,
an [[Open Source Engines|open source chess engine]] by [[Matt Gingell]] under the [[Free Software Foundation#GPL|GNU Public License]], written in [[Cpp|C++]] and supporting both [[Windows]] and [[http://en.wikipedia.org/wiki/POSIX|POSIX]]. Chesley is compatible with the [[Chess Engine Communication Protocol]]. It takes its name from [[http://en.wikipedia.org/wiki/Chesley_Sullenberger|Chesley B. “Sully” Sullenberger]], the pilot who [[http://en.wikipedia.org/wiki/US_Airways_Flight_1549|successfully landed a airplane]] on the [[http://en.wikipedia.org/wiki/Hudson_River|Hudson river]] around the time Matt was getting started <ref>[[http://sourceforge.net/apps/wordpress/chesley/2009/05/|Project chesley - Hello World!]]</ref>. Chessley is a [[Bitboards|bitboard]] program, and applies [[Rotated Bitboards|rotated bitboards]] not using the [[First Rank Attacks#TheOuterSquares|outer square optimization]] for a fourfold table reduction <ref>[[https://chesley.svn.sourceforge.net/svnroot/chesley/chesley/trunk/board.hpp|board.hpp]]</ref>. Matt made experiments with the [[Score|Score]] data type in Chesley,  and replaced 32-bit integer by [[Float]], taking the same space <ref>[[http://sourceforge.net/apps/wordpress/chesley/2010/01/|Project chesley - Using floating point]]</ref>.

=See also=
* [[Various Classifications#GivenName|Given Name]]

=External Links=
* [[http://sourceforge.net/apps/wordpress/chesley/|SourceForge.net: Project chesley]] by [[Matt Gingell]]
* [[http://sourceforge.net/projects/chesley/|Chesley the Chess Engine!]] by [[Matt Gingell]]

=References= 
<references />
=What links here?=
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